Austin, Texas
21C Hotel & Condos - 580 feet with 44 floors. They later changed the design and split it between two buildings with a ~550 foot and ~325 foot building. The project is dead. The museum group is now planning a smaller development east of downtown.
The first lot the project was slated for has since seen a 17-story apartment building built, and the 2nd site is being planned for a three tower project that I'll talk about next.
First design - and the one I preferred:
Second design:
Waller Park Place - 65 floors, "35 to 45 floors" and "17 to 20" floors. This project is still planned and is working through the developmental process, but it has changed design. The plan was and still is for residential, hotel, office and retail.
At the moment this is what we know will happen. The heights now are 576 feet with 52 floors, 501 feet with 45 floors and 258 feet with 21 floors. The project is still planned to have residential, office, hotel and retail.
Fairmont Austin Hotel - 691 feet to the spire and 572 feet to the roof/mechanical screen. The floor count was published as 50 floors, but the actual building elevations showed 45 occupied floors.
This project went through a design change. The below design is now being built. Site prep is underway. This design is 595 feet to the spire and 456 feet to the mechanical screen with 36 floors. it is going to have 1,066 rooms which will make it the largest hotel in Austin. A couple of articles have also said it'll be the largest Fairmont Hotel in the world. The building will have a walkway connecting it to the convention center across the street.